From: "Patterson,Gordon" <[email protected]>
Subject: RE: BOUNCE [email protected]: Non-member submission from
Everything having been said about referencing different standards and
committees not being willing or able to affect voltage limits, it still
seems to me that the withdrawal of UL 1459/CSA 225 leaves no standard to
reference and requires voltage limit changes in a remaining standard.
(UL
1950/CSA 950?).
Gordon
(1) If the IEC 60950 equipment cannot get the distance, doesn't that
mean
that
approved equipment cannot go the distance and that we would have to sell
twice as much equipment to cover the distance ??
(2) If that is the case, isn't it true that "public utilities" that do
not
have to use "approved" equipment could deliver the service for less
money
and would be advantaged ??
(3) Shouldn't we be talking to our marketing managers how we want to
play
this ?
The UL1950 IAC and the CSA 950 subcommittee, by and large are populated
by
the
same people who represent you in IEC TC74 and are devoted to reducing
the
number of differences in the North American standard from the IEC
standard.
The limits in IEC 60950 come from another IEC Committee that governs the
maximum voltages, not from IEC TC74. It is that other committee,
populated
by
people who have not yet woken up to the fact that the Telecom Industry
has
been working safely with voltages that far exceed anything they allow,
for
many many years, that needs to change.
Choices are, sell more equipment, or spend a lot of money on converting
the
luddites. Rocket science all.
Ciao,
Vic
